so join us for that. our first guest tonight, against considerable odds, celebrated his 40th birthday this month. he is the co-founder of an empire known as "jackass." >> because 24/7 when we're shooting, all of us are always attacking each other. i may be attacking everyone a little more. >> jimmy: "jackass 3" is available now on dvd and blu-ray. and "jackass 3.5" premieres april 1st on the website joost.com. please say hello to johnny knoxville. [ cheers and applause ] >> jimmy: look at that. >> hello. >> jimmy: you brought a monster with you. >> yes. when my son was born, jimmy was nice enough to send a cookie monster and it went to the wrong address so you sent two and this is the second one and i want to give it to this young lady in the audience here. there you go. there's your cookie monster. [ applause ] >> jimmy: i went to the wrong address. >> that's from me and jimmy. you're welcome. >> jimmy: and your son, rocco. that really was his. >> i just sold him down the river. >> jimmy: not a sex doll.